E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
E04C 5/07 (2006.01) B29C 70/08 (2006.01) B32B 5/08 (2006.01) E01D 22/00 (2006.01) E04G 23/02 (2006.01)
Patent
CA 2132460
The present invention provides a reinforcing-fiber sheet which permits sufficient reinforcement of a concrete structure with a smaller number of layers than in the conventional cases. A concrete structure has reinforcing bars and a reinforcing-fiber sheet comprising a substrate sheet, an adhesive layer, and a plurality of carbon fibers. The fibers have a modulus of elasticity of at least 35 ton/mm2, a fracture elongation of at least 0.9%, and a unit weight on the fiber sheet of at least 250 g/m2. The reinforcing-fiber sheet is adhered to the concrete structure with the plurality of carbon fibers aligned in the direction of the reinforcing bars of the concrete structure. A thermosetting resin impregnated into the plurality of carbon fibers is allowed to cure thereon.
Marks & Clerk
Nippon Steel Corporation
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